I had my CEL light come on so i took it to the dealer it was a bad 02 sensor comming up after running it on thier computer at the dealer they pulled 3 other codes that seemed to be from a subsystem , my guess is toyota/scion specific but are there readers on the market that can read these codes too or do only the ripoff artists at the dealers have access to these codes :-/
it was legit as far as the new codes i saw the printout of the diagnostics i just want to get a scantool capable of the most if i can